Metallic hub for carriage-wheels



S. I. RUSSELL.

Hub.

Patented June 15. 1858 N Fifi-RS, PHOTO LTHDGRAP} UNITED STATES PA TOFFTS.

S. I. RUSSELL, OF CHICAGO, ILLINOIS.

METALLIC HUB FOR CARRIAGE-WHEELS.

Specification of Letters Patent No. 20,586, dated June 15, 1858.

To all whom it may concern:

Be it known that I, SAMUEL I. RUSSELL, of the city of Chicago, in thecounty of Cook and State of Illinois, have invented a new and ImprovedMetallic Carriage-I-Iub; and I do hereby declare that the following is afull and exact description thereof, reference being had to theaccompanying drawings and to the letters of reference marked thereon.

One great objection to the use of metallic hubs is the injury done tothe woody fiber in driving the spokes tightly into the hub. Anotherdifliculty arises from the shrinking of the spokes, so as to becomeloose in the hub. WVhen divided hubs are used, they also break thefibers of the wood upon the surface of the spoke, either in thetightening or from the working of one part of the hub upon another part.My divided metallic hub is free from these difficulties.

My invention consists of a metallic hub cast in three pieces, having twosets of wedgeshaped project-ions passing between the spokes, one set ofwhich is cast in the same piece with the boxes and is provided withhooks to embrace the other set and to hold the parts of the hubimmovably in position when brought home upon the spokes by a screw nut.It consists also in a guard of rubber for the purpose of tightening thespokes without injury to the woody fiber and of holding them and thedifferent parts of the hub firmly in place.

In the accompanying drawings, Figure 1, is a plan of my hub with thespokes removed. Fig. 2, is a vertical section of the hub, showing alsotwo spokes which are broken off, but not in section.

The hub is cast in three pieces, as shown in Fig. 1, A, B, and O. InFig. 2, it will be seen that the part C, is connected with the part A bya screw thread. hen the part C is unscrewed, the piece B, also becomesloose, so that the spokes may be taken out; and when the part C isscrewed upon A, the spokes are pressed tightly in place and graspedfirmly.

The projections F which are cast with A, and the correspondingprojections E, which are cast with B, embrace the sides of the spoke D,Fig. 2, and when they are forced into place, the spokes and all parts ofthe hub are fixed with great rigidity.

In Fig. 2 it will be seen that the projection F is longer than theprojection E, and that the points or hooks S, S, embrace the projectionsE, so as to hold the part B, in place.

In hubs somewhat similar to mine, the spoke is grasped at the end wherethe pres sure of the wedgeshaped projections is more likely to crack thewood. IVith such hubs the spokes must be made small at the end in orderto enter the mortise. On the contrary, my hub receives the spokes offull size on account of the free space at e, c, Fig. 2, while theprojections E, and F, grasp the spoke a short distance from the endwhere the wood is less liable to be injured by pressure. At the sametime the diameter of my hub is increased without an increase of metal;on this account, and also on account of the full size of my spokes asinserted into the hub, my wheels will bear a greater shock withoutbreaking the spokes. Another advantage of my hub is the fixedness of theparts, there being but two main pieces, one of which is cast with theaxle boxes, so as to be completely unyielding under the pressure of theload upon the wheels. The piece B, is confined by hooks S, S, and beingforced home by screwing up the part C the whole hub is almost like asingle piece.

The spokes are made so wide that they keep the projections E and F, fromcoming quitein contact. A piece of india rubber, 25, Fig. 1, is wrappedaround each spoke before inserting the latter into the hub, thusaffording additional protection to the timber.

Having thus fully described my invention, what I claim as new in theconstruction of divided metallic hubs and what I desire to secure byLetters Patent of the United States is:

1. The wedge shaped projections E, F, when employed in connection withthe spaces 6, e, and hooks S, S, for securing the spokes and locking thetwo parts of the hub firmly together, substantially as setforth.

2. The use of india-rubber, to protect the woody fiber of the spokes, asset forth.

S. I. RUSSELL.

Witnesses:

C. D. Fnr'rz, THOS. P. 0. LANE.

